Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Atom
|
particle that makes up all matter
|
https://o.quizlet.com/i/_ncuYRrMy-eh6GYyPHiX5g_m.jpg
|
|
|
Nucleus
|
small, dense center of atom containing protons and neutrons
|
https://o.quizlet.com/i/_ncuYRrMy-eh6GYyPHiX5g_m.jpg
|
|
|
Proton
|
positive particle in nucleus; mass = 1 AMU
|
https://o.quizlet.com/i/_ncuYRrMy-eh6GYyPHiX5g_m.jpg
|
|
|
Neutron
|
neutral particle in nucleus; mass = 1 AMU
|
https://o.quizlet.com/i/_ncuYRrMy-eh6GYyPHiX5g_m.jpg
|
|
|
Electron
|
negative particle in electron cloud; mass = 0 AMU
|
https://o.quizlet.com/i/_ncuYRrMy-eh6GYyPHiX5g_m.jpg
|
|
|
Electron Cloud
|
region outside nucleus; contains electrons in orbitals
|
https://o.quizlet.com/i/_ncuYRrMy-eh6GYyPHiX5g_m.jpg
|
|
|
Atomic Number
|
equal to the # of protons in an atom
|
https://o.quizlet.com/54POX6fcimdWOcTAZnkguA_m.png
|
|
|
Mass Number
|
equal to the # of protons and # of neutrons
|
https://o.quizlet.com/i/F0FdvJGKKm_0ySwonTlRqQ_m.jpg
|
|
|
Quark
|
particle that makes up protons & neutrons
|
https://o.quizlet.com/pSYC1x-LIo0xJ9b7kqjTnQ_m.jpg
|
|
|
Net Charge
|
overall charge of atom (positive charge = loss of electron / negative charge = gain of electron)
|
https://o.quizlet.com/i/v_B5sAsyREbxYWt8X00DyA_m.jpg
|
|
|
Democritus
|
concept of atom; divided matter into smaller pieces
|
https://o.quizlet.com/F6.N8HsHPKI4Xthzch8ZFw_m.jpg
|
|
|
John Dalton
|
Atomic Theory of Matter; compared atoms & explained reactions
|
https://o.quizlet.com/n4UnKzhhEqQcAqdVNvW31Q_m.jpg
|
|
|
J.J. Thomson
|
discovered electron; cathode ray tube
|
https://o.quizlet.com/2KCFaZM5M624n.FeFG9qEg_m.jpg
|
|
|
Ernest Rutherford
|
discovered nucleus; gold foil experiment
|
https://o.quizlet.com/mFLEQGjsUnzT6J4JwuHStA_m.jpg
|
|
|
Niels Bohr
|
7 electron energy levels; bright line spectra
|
https://o.quizlet.com/i/JG7tmCK-G2-mAs9eswTsPg_m.jpg
|
|
|
Ion
|
positively or negatively charged atom; made by gaining or losing electrons
|
https://o.quizlet.com/i/v_B5sAsyREbxYWt8X00DyA_m.jpg
|
|
|
Isotope
|
element's atom with same # protons, different # neutrons and mass #
|
https://o.quizlet.com/6QP.Vp4R-m6fF9doBTGJwg_m.png
|
|
|
Average Atomic Mass
|
weighted average of masses of element's isotopes
|
https://o.quizlet.com/i/_bxaMomulcdl1pWGqNk0bw_m.jpg
|
|
|
Valence Electrons
|
electrons in outer energy level of an atom
|
https://o.quizlet.com/i/hUrQ7PkOdPmiRW9xEZu5AA_m.jpg
|
|
|
Periodic Law
|
elements' properties change in repeating relationship with atomic number
|
https://o.quizlet.com/jRGTkPZIcGsPFsPgHJmKBA_m.png
|
|
|
Periods
|
horizontal rows of the periodic table
|
https://o.quizlet.com/i/_bDc_jeLJggQVGXzQqfUMQ_m.jpg
|
|
|
Groups(Families)
|
vertical columns of the periodic table
|
https://o.quizlet.com/WnZ1WmSy-74-CVj4wP09jg_m.png
|
|
|
Alkali Metals
|
Group 1 of periodic table; 1 valence electron, so very reactive
|
https://o.quizlet.com/zTO7kgepjNpwks40.Iyn8A_m.png
|
|
|
Alkaline Earth Metals
|
Group 2 of periodic table; 2 valence electrons, so less reactive
|
https://o.quizlet.com/xGvaM0trN1q3INEhY28Xng_m.png
|
|
|
Halogens
|
Group 17 of periodic table; 7 valence electrons, so reactive
|
https://o.quizlet.com/b89B0cOkNw9CHeQJQCc54A_m.png
|
|
|
Noble Gases
|
Group 18 of periodic table; 8 valence electrons, so stable/unreactive
|
https://o.quizlet.com/LgXDJ8SQSrl4PisXXzsSRg_m.png
|
|
|
Metals
|
left side of periodic table; shiny, malleable, ductile, & good conductors
|
https://o.quizlet.com/9QS6GByNLBy.4eBVK0R3tA_m.jpg
|
|
|
Metalloids
|
touching staircase on periodic table; properties of metals & nonmetals
|
https://o.quizlet.com/9QS6GByNLBy.4eBVK0R3tA_m.jpg
|
|
|
Nonmetals
|
right side of periodic table; gases or brittle solids; poor conductors
|
https://o.quizlet.com/9QS6GByNLBy.4eBVK0R3tA_m.jpg
|
|
|
Coefficient
|
big number in front of chemical formula; # molecules
|
https://o.quizlet.com/ZbiBN3c2QMdn8ul4UzIhFQ_m.jpg
|
|
|
Subscript
|
small number after & below element symbol; # atoms
|
https://o.quizlet.com/ZbiBN3c2QMdn8ul4UzIhFQ_m.jpg
|
